Academic Domain: Electrical & Electronic Engineering
The Circuit
Electronic Devices & Circuits Ontology
The Architecture of Machinery
The Mind thinks. The Circuit gives thought a physical machine. This realm bridges the vast gap between abstract mathematical logic and the tangible reality of flowing electrons, mapped progressively from atomic physics to complex system design.
MATTER →
CHARGE →
ELECTRONS →
ENERGY STATES →
BAND STRUCTURE →
SEMICONDUCTOR →
DOPING →
JUNCTION →
DEVICE →
BIASING →
CIRCUIT →
AMPLIFICATION →
SYSTEM
The 20 Ontological Realms
Electronic Devices & Circuits Master Map
REALM 01
Electronics Foundations
- Voltage, Current, Resistance
- Electric Field & Energy
- Active vs Passive Devices
- Analog vs Digital concepts
Semiconductor Physics
- Materials (Si, Ge, Compound)
- Covalent Bonding & Lattice
- Conductor vs Insulator vs Semi
- Temperature Dependence
Energy Bands
- Valence & Conduction Bands
- Forbidden Energy Gap (Eg)
- Direct vs Indirect Band Gap
- Fermi Level Introduction
Charge Carriers
- Electrons & Holes
- Intrinsic Concentration (ni)
- Generation & Recombination
- Excess Carriers
Carrier Transport
- Drift Current & Mobility
- Diffusion & Concentration Gradients
- Minimum Conductivity
- Fermi-Dirac Function & Statistics
Doped Semiconductors
- N-type & P-type Extrinsic
- Donors & Acceptors
- Charge Neutrality Law
- Mass-Action Law (np = ni²)
PN Junction
- Depletion Region Formation
- Built-in Potential & E-Field
- Forward & Reverse Biasing
- Junction Capacitance
Diodes
- V-I Characteristics & Knee Voltage
- Ideal vs Practical Models
- Static & Dynamic Resistance
- Rectifiers, Clippers & Clampers
Special Devices
- Zener Diode (Breakdown)
- LED & Photodiode
- Solar Cell
- Varactor & Tunnel Diodes
BJT (Bipolar Junction Transistor)
- NPN & PNP Structure
- Current Gains (α, β)
- CE, CB, CC Configurations
- Early Effect / Base-Width Mod
FET / JFET / MOSFET
- Electric Field Control Principle
- JFET (Pinch-off & Characteristics)
- MOSFET (Enhancement/Depletion)
- Threshold Voltage
Transistor Biasing
- Operating Point (Q-Point)
- DC Load Line
- BJT/FET Biasing Circuits
- Thermal Stability Factors
Small-Signal Analysis
- Small-Signal Concept
- Hybrid-π Model
- Transconductance
- Input / Output Resistance
Amplifiers
- CE, CB, CC / CS, CG, CD configs
- Multistage Amplifiers
- Frequency Response
- Gain-Bandwidth Product
Feedback
- Positive vs Negative Feedback
- Topologies (Voltage/Current)
- Gain Stabilization
- Bandwidth & Noise Effects
Oscillators
- Barkhausen Criterion
- RC Oscillators (Phase Shift/Wien)
- LC Oscillators (Hartley/Colpitts)
- Crystal Oscillators
Power Devices
⚡
- Power Diode & SCR
- TRIAC & DIAC
- UJT
- Power MOSFET & IGBT
Power Supplies & Regulation
- Filters (C, LC, Pi)
- Zener Voltage Regulators
- IC Regulators (78xx series)
- SMPS Fundamentals
Integrated & Special Devices
- IC Fabrication Concepts
- Optocouplers & Isolators
- Phototransistors
- Semiconductor Sensors
20 — Circuit Analysis & Exam Laboratory
[1] NUMERICAL PROBLEMS [2] DC/AC LOAD LINES [3] BODE PLOTS [4] FAULT DIAGNOSIS [5] PREVIOUS YEAR QUESTIONS (PYQ)
The convergence of theory and exam reality. Applying mathematical models to solve complex device networks, plotting frequency responses, and mastering the specific conceptual traps tested in advanced engineering examinations.
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